US3556346A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dispenser for viscous products
Assignee: Individual
•
Filing: 1968-11-13
•
Granted: 1971-01-19
•
Expires: 1988-11-13
Abstract
Abstract An electric motor driven piston member effects displacement of viscous semiliquid product from its shipping vessel into either of a pair of pump cylinders whose pistons are alternately power driven to expel the product to a delivery line. The pistons of hydraulic actuator cylinders drive the pump pistons under the control of a reversing valve which is reversed each time one of the actuator pistons completes its drive stroke. The electric motor that drives the product-displacing piston member is deenergized whenever the latter effects bodily displacement of the product vessel beyond a predetermined range of motion.
Inventors
- 👤 Harold Karl Steiner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:41
CPC Classifications
F; F04; F04B; F04B9/00; F04B9/08; F04B9/10; F04B9/109; F04B9/117; F04B9/1176; B; B65; B65G; B65G53/00; B65G53/30; F01; F01L; F01L25/00; F01L25/08; F04B23/00; F04B23/02; F04B23/021; F04B23/023; F04B49/00; F04B49/02; F04B49/022
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
236 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. said port means comprising a pair of ports opening to the pressure face of the piston members; B. a pair of pump cylinders, one for each of said ports, to receive and Be charged by displaced product debouching from their respective ports, each of said pump cylinders having a piston which is driven in its retraction stroke by viscous product debouching into its cylinder; C. a manifold connecting with the pump cylinders to conduct viscous product expelled therefrom to the delivery line on the pumping strokes of their respective pistons; D. pressure actuatable valve means operable to close off either pump cylinder from the delivery line in response to the pressure produced in the other pump cylinder during the pumping stroke of its piston; E. a check valve associated with each of said ports and arranged to close in response to the pressure obtaining in the associated pump cylinder on the pumping stroke of its piston; F. and means for driving the pump pistons.
Claim 2
Dependent Claim
236 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. said port means comprising a pair of ports opening to the pressure face of the piston members; B. a pair of pump cylinders, one for each of said ports, to receive and Be charged by displaced product debouching from their respective ports, each of said pump cylinders having a piston which is driven in its retraction stroke by viscous product debouching into its cylinder; C. a manifold connecting with the pump cylinders to conduct viscous product expelled therefrom to the delivery line on the pumping strokes of their respective pistons; D. pressure actuatable valve means operable to close off either pump cylinder from the delivery line in response to the pressure produced in the other pump cylinder during the pumping stroke of its piston; E. a check valve associated with each of said ports and arranged to close in response to the pressure obtaining in the associated pump cylinder on the pumping stroke of its piston; F. and means for driving the pump pistons.
Claim 3
Dependent Claim
110 words
The dispensing apparatus of claim 1 further characterized by: A. a base structure from which the base member is supported; B. yieldable means on the base structure supporting the base member for movement in one direction relative to the base structure in consequence of force required to expel viscous product from a vessel on the base member; C. power operated means for effecting motion of said one member toward the other member; D. and control means for said power operated means, for rendering the same inoperative in response to movement of the base member in said direction relative to the base structure beyond a predetermined range of such relative movement.
Claim 4
Dependent Claim
12 words
a piston drivingly connected with the piston of its associated pump cylinder;
Claim 5
Dependent Claim
12 words
a piston drivingly connected with the piston of its associated pump cylinder;
Claim 6
Dependent Claim
110 words
and a chamber into which pressure fluid can be directed to effect the pumping stroke of its associated pump piston, and from which pressure fluid can be exhausted to provide for charging of its associated pump cylinder with viscous product displaced into its associated pump cylinder; B. a reversing valve mechanism for effecting flow of pressure fluid to either chamber while concurrently providing for exhaust flow of pressure fluid from the other chamber; C. and means for effecting reversal of said valve mechanism in consequence of the rise in pressure occurring in each of said chambers at times when the actuator piston associated therewith reaches the end of its stroke.
Claim 7
Dependent Claim
110 words
and a chamber into which pressure fluid can be directed to effect the pumping stroke of its associated pump piston, and from which pressure fluid can be exhausted to provide for charging of its associated pump cylinder with viscous product displaced into its associated pump cylinder; B. a reversing valve mechanism for effecting flow of pressure fluid to either chamber while concurrently providing for exhaust flow of pressure fluid from the other chamber; C. and means for effecting reversal of said valve mechanism in consequence of the rise in pressure occurring in each of said chambers at times when the actuator piston associated therewith reaches the end of its stroke.
Claim 8
Dependent Claim
54 words
The dispensing apparatus of claim 2, further characterized by: A. said power operated means comprising an electric motor; B. and said control means comprising a normally closed electric switch controlling energization of the motor and connected with the base member to be opened thereby whenever the base member is moved beyond said predetermined range.
Claim 9
Dependent Claim
24 words
The dispensing apparatus of claim 1, wherein said means for driving the pump pistons comprises: A. an actuator cylinder for each pump cylinder; having
Claim 10
Dependent Claim
49 words
The dispensing apparatus of claim 4, further characterized by: A. means providing a source of fluid under pressure, comprising an electric motor driven pump; B. and a pressure switch for effecting deenergization of the pump motor in response to attainment of a predetermined high pressure in the delivery line.
Claim 11
Dependent Claim
169 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other member effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. first power operated means for driving said one member toward the other to thereby effect displacement of product through said port means to the back of the piston member; B. chamber means on the back of the piston member communicating with said port means to receive displaced product debouching therEfrom; C. pump means spaced from the back of the piston member and communicating with said chamber means for pumping product therefrom to and along the delivery line; D. and means for driving said pump means comprising power operated means separate from said first power operated means.
Claim 12
Dependent Claim
169 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other member effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. first power operated means for driving said one member toward the other to thereby effect displacement of product through said port means to the back of the piston member; B. chamber means on the back of the piston member communicating with said port means to receive displaced product debouching therEfrom; C. pump means spaced from the back of the piston member and communicating with said chamber means for pumping product therefrom to and along the delivery line; D. and means for driving said pump means comprising power operated means separate from said first power operated means.
Claim 13
Dependent Claim
31 words
The dispensing apparatus of claim 6, further characterized by: A. a pressure head from which the piston member is supported; B. and said pump means being carried by the pressure head.
Claim 14
Dependent Claim
21 words
The dispensing apparatus of claim 7, wherein the piston member is rigidly joined to the pressure head by said pump means.
Claim 15
Dependent Claim
65 words
The dispensing apparatus of claim 6, wherein the piston member comprises said one member, and wherein said first power operated means comprises: A. a power source; B. a pressure head to which the piston member is fixed; C. and means drivingly connecting the power source with said pressure head to move the same and the piston member therewith as a unit toward the base member.
Claim 16
Dependent Claim
96 words
The dispensing apparatus of claim 6, wherein said displacement of product from the vessel is effected in consequence of movement of the piston member toward the base member, and further characterized by: A. a pressure head to which the piston member is fixed; B. a bed plate from which the base member is supported; C. a plurality of screw threaded shafts freely rotatably journaled in the bed plate and having screw threaded connections with the pressure head; D. an electric motor carried by the bed plate; E. and means drivingly connecting the motor with said shafts.
Claim 17
Dependent Claim
218 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other member effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. an electric motor operatively connected with the piston member to drive the same in one direction toward the base member; B. chamber means communicating with said port means to receive displaced product debouching therefrom; C. pump means for pumping product from said chamber means to and along the delivery line; D. a bed plate to support the base member; E. spring means connected between the bed plate and the base member to yieldingly support the same against the thrust of the piston member transmitted thereto through the product being dispensed from a vessel on the base member, whereby the base member can move relative to the bed plate in said direction; F. and switch means actuated in response to motion of the base member in said direction through and beyond a predetermined range of motion for effecting disruption of the energizing circuit for the motor.
Claim 18
Dependent Claim
218 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other member effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. an electric motor operatively connected with the piston member to drive the same in one direction toward the base member; B. chamber means communicating with said port means to receive displaced product debouching therefrom; C. pump means for pumping product from said chamber means to and along the delivery line; D. a bed plate to support the base member; E. spring means connected between the bed plate and the base member to yieldingly support the same against the thrust of the piston member transmitted thereto through the product being dispensed from a vessel on the base member, whereby the base member can move relative to the bed plate in said direction; F. and switch means actuated in response to motion of the base member in said direction through and beyond a predetermined range of motion for effecting disruption of the energizing circuit for the motor.
Claim 19
Dependent Claim
179 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other member effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. power operated means for driving said one member toward the other to thereby effect displacement of product through said port means in the piston member, said power operated means comprising a motor drivingly connected with the piston member; B. chamber means communicating with said port means to receive displaced product debouching therefrom; C. pump means for pumping product from said chamber means to and along the delivery line; D. spring means mounting the base member for yielding motion under the thrust of the piston member; E. and means for rendering the motor ineffective in response to a predetermined amount of yielding motion of the base member.
Claim 20
Dependent Claim
179 words
Dispensing apparatus comprising a piston member and a base member opposing the same, the base member being adapted to support a vessel having a sidewall providing a cylinder to slidably receive the piston member so that movement of one of said members toward the other member effects displacement of viscous product from the vessel through port means in the piston member for flow to a delivery line, said apparatus being characterized by: A. power operated means for driving said one member toward the other to thereby effect displacement of product through said port means in the piston member, said power operated means comprising a motor drivingly connected with the piston member; B. chamber means communicating with said port means to receive displaced product debouching therefrom; C. pump means for pumping product from said chamber means to and along the delivery line; D. spring means mounting the base member for yielding motion under the thrust of the piston member; E. and means for rendering the motor ineffective in response to a predetermined amount of yielding motion of the base member.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |